20453540033043 has 24 divisors (see below), whose sum is σ = 31816803200000. Its totient is φ = 12586720533120.

The previous prime is 20453540033033. The next prime is 20453540033063. The reversal of 20453540033043 is 34033004535402.

20453540033043 is a `hidden beast` number, since 2 + 0 + 45 + 3 + 540 + 0 + 3 + 30 + 43 = 666.

It is not a de Polignac number, because 20453540033043 - 2⁹ = 20453540032531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20453540032989 and 20453540033007.

It is not an unprimeable number, because it can be changed into a prime (20453540033023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25166958 + ... + 25966956.

Almost surely, 2^{20453540033043} is an apocalyptic number.

20453540033043 is a deficient number, since it is larger than the sum of its proper divisors (11363263166957).

20453540033043 is a wasteful number, since it uses less digits than its factorization.

20453540033043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018539 (or 1018536 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 36.

Adding to 20453540033043 its reverse (34033004535402), we get a palindrome (54486544568445).

The spelling of 20453540033043 in words is "twenty trillion, four hundred fifty-three billion, five hundred forty million, thirty-three thousand, forty-three".